have ya tested the engine for leak down and compression ect


2 litres in 2 weeks is bad unless ya drive all day long


thing with turbos its they all seem fooked even when they aint


and there always failing due to contamitated oil too



oh and theres nothing wrong with getting help and assistace from fellow profesionals too as some may have come accross problems before that ya never thought of


i work on cycles for a liviong and i have prob in my years of experinece seen more strange tinny problems with bikes that others over look and spend alog time diagnoising at the customers expense and also same goes the other way